php网站报错[IlluminateDatabaseQueryException] SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using pas sword NO) (SQL select from information_schema.tables where table_schema = 

蓝队云小课堂：

[Illuminate\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\Database\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\QueryException]

SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using pas

sword: NO) (SQL: select * from information_schema.tables where table_schema

= laravel_test1 and table_name = migrations)

通常是缓存造成的

在命令行中进入程序根目录，执行下列语句。

php artisan cache:clear

php artisan config:clear

php artisan serve

然后在执行 php artisan migrate

注意：前提是检查完了 .env和config/database.php

更多小知识，可联系蓝队云一起探讨。